Pneumatic tire.



M. A. BEES..

PNEUMATIG TIRE.

APPLICATION FILED SEPTA 1g, 1910,

Patented Aug. 1, 1911.

2 SHEETS-SHEET 1.

M. A. BEES. PNEUMATIG TRE.

APPLIOATIGN Hman SEPT. 12, 1910.

Patented Aug. 1, 1911.

2 SHEETS-SHEET Z.

' in my pneumatic tire. 50.

MARK A. DEES, OF PASCAGOULA, MISSISSIPPI.

PNEUMATIC TIRE.

asesora.

Specification of Letters Patent. Patelitd Aug', l, i911,

Application filed September 12, 1910. Serial No. 581,519.

To all whom 'it may concern:

Be it known that l, MARK Ders, a citizen of the United States of America, residing at Pascagoula, in the county'ot' Jackson and Stateof Mississippi, have invented certain new and useful Improvements in Pneumatic Tires, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciication.

-My invention relates to a pneumatic tire for use on vehicle wheels.

The principal object of my present invention is to provide a protector envelop by which the inner inflatable tube of a pneumatic tire is eiectually incased to prevent what are commonly known as blow-outs7 and to connect the separable edges of such envelop so that the envelop will not be susceptible of distention, but will etfectually confine the inner tube within it.

A further objectof the invention isl to so .construct the inner tubeincasing envelop as to provide for its separable edges being connected at a point where the envelop is subject to the least, -or no disturbance in the use of the pneumatic tire in which it is utilized. p

A further object of the invention is to provide in a pneumatic tire casing and inner tube incasing envelop a unitary member by which said envelop is eiectually held at the point where its separable edges are joined, and which serves also as a means for spreading the beads. of the tire casingto their proper positionsn the tire receiving rim of the wheel on which the'pneumatic tire is used.

Figure-I is a longitudinal section through a fragment of' a vehicle wheel and my pneu-4 matic tire. Fig. II is a cross section through my tire and the tire receivingv rim. Fig. Ill is a perspective view of fragments of the spreader ring entering into' t-he construction of my tire. Fig. IV bis'aperspective view of a fragment vof the inner tube incasing envelop. Fig. V is a side elevation on a reduced scale of apuncture proof band used ln the accompanying drawings: A designates the tire receiving rim of a Vehicle wheel, thisrim being' provided 'with t-he usual inturned side langes a.

B is the tire casing provided with the usual beads b adapted to seat within the in turned flanges of the wheel rim A. v

C is the inner inflatable tube of the tire, located within the casing B.

D designates my inner tube incasing envelop. `This envelop is preferably composed of a plurality of sections l, joined together by stitches, and it is preferably made of rawhide or leather, although it may be made ot any other suitable flexible material. The4 envelop is of continuous, or ring, shape conforming to the inner tube it. iucases, and it has separable edges located. at its inner circle, the envelop being provided adjacent to said edges with buttondioles 2 adapted to receive fastening means to be presentlyparticularly referred to.

E designates a spreader ring interposed between the inner tube C and the portions of the tube incasing envelop at its inner circle so that said ring is in position to serve, in addition to an office it performs in connection with the tire incasing envelop, .as

a spreader whereby the beads b of the tire casing B are spreadoutwa-rdly in the tire receiving rim A and'held in their proper positions in-said rim. This spreader' ring E preferably comprises a casing 3 and a core i within said casing, the core being preferably of some solid material of a iiexible nature that will permit of the spreader yielding to acertain degree when it is subjected to pressure imposed. thereon by the inner tube in the tire, iu order that the spreader' ring will adapt itself to the parts adjacent thereto in such degree as to cause it to exert its proper holding influence upon the portions of the tire casing fitted to the tire receiving rim, and also uponthe inner port-ions of the tire incasing envelop D. The spreader ring is supplied with a series of buttons 5 corresponding in number to the number of pairs of button-holes 2 in the envelop D, arranged in meeting relation, and the said envelop is connected at its edges to said spreader ring by thepassage of said buttons through said button-holes, as most'clearly seen in Fig. Il, whereby the envelop is rendered a complete tube of ring shape by which the inner inflatable tube C is positively incased to prevent more than a predetermined maximum degree of disten# ltion of said .inflatable tube.

The inflatable tube is, therefore, so guarded as .to eliminate all possibility of such distention .as will result in the occurrence of excessive air pressure therein at any point, and the blowing out of the inner' tube is ren-r dered impossible. The buttons 5 are prefer ably mounted in the casing of the spreader ring E, as shown in the drawinffs, sothatthey are located remote from the inner tube C, and said inner tube is protected from injury by said buttons ldue to the existence of the core of the spreader ring between the 'tube and the buttons.

I will, next proceed tothe description of the puncture proof'device entering into my pneumatic tire. This device comprises a single helical strip 6 of flexible material, preferably steel, yfound intoa plurality of coils, the outermost of which overlie, the innermost coil. 'these Acoils are free of an)7 connection with each other,.and they provide an expansib'le and contractible puncture proof band which, when placed circumierentially of the tire betweenthe tread ci' the easing and the inner inflatable tube, is

susceptible of expanding and contracting ac cording,- to the disteution or partial relaxation of the tire. The band, therefore, accommodates itself to the condition of the tire while at the same time it is alnjays in such condition as to ett'ectually prevent puncturing oi the inner tube in the event ot' the passage ot' any sharp instrument through the tread o'tf 'the ti-re. The band shaped puncture proof strip 6 is inclosed within an inner layer 7 of suitable material and an outer layer-.8, preferably joined together at one edge, as seen at 9, the layer .7 serving to prevent injury to the tire incasing envelop I) by the puncture prooi,l strip while the outer layer oi" material En serres' to pretect the tire casino- B trom injury by said puncture proof strip.

1() is a pad located between the puncture proof strip 6 and the outer protector layer 8, this pad being interposed at the point named to afford the proper contour of the tire opposite the tread of the tire casing.

l'claim:

1. lin a pueun'iatic tire, the conibination of an outer casing, an inner tube, an euvelop within said outer easing incasing said inner tube, having separable edges 'at its inner circle, a ring u'itbin the inner circle of said envelop,` and means carried on the inner side. of said ring to which the separable edges ot' said envelop are connected.

2. ln a pneumatic tire, the combination ot an outer casing, an inner tube, an envelop within said outer casing incasingI said inner tube, having separable edges at its inner circle provided Wit-h button holes, a ring within the inner circle of said envelop. and. buttons carried on the inner side of said ring)r to which the button holes of the separable edges of said envelop are connected.

M. C.-HAMMoN, E. B. Linn. 

